I'm not actually sure how long we dated. We met, he found out I was too young and dropped me like a hot potato. We met again years later, dated for a couple of months (? - definitely much less than a year). That time I took off. Then he called me up a few years after that and it was the kicker. Married within about 4 months I'd say.
If you're looking for marriage and you have 8 years, a child and a house under your belts, I'd say marriage isn't too likely, but is that maybe only because it's not high enough on either of your priority lists? Do you have a commitment? Is that enough? If so, great. If not, talk.